Last modified: 2014-10-27 14:13:07 UTC
It seems an old version of the item is loaded when using the back button in the browser. See http://www.wikidata.org/wiki/Wikidata:Paper_cuts#Going_back_in_browser_loads_old_version
Two potential solutions I can think of: 1. Make use of bfcache (thus modified DOM is cached too), which is disabled due to http://bugs.jqueryui.com/ticket/9522 currently. 2. Disable page cache more completely (with no-cache or no-store in Cache-Control), which needs some performance evaluation.
*** Bug 58533 has been marked as a duplicate of this bug. ***